Virtual Reality as a Tool for Training Public Speaking Skills in Higher Education Students: A Randomized Controlled Trial

According to the scientific literature, public speaking (PS) is an important skill for students to master. However, a large proportion of students do not feel comfortable speaking in public. PS anxiety impacts oral communication (i.e., voice and fluency). These changes can affect speaker's academic and professional success, as well as his credibility. Performing a high-quality PPP with confidence is therefore rarely an innate skill, but fortunately it can be trained and improved. Therefore, training PS skills in representative settings is crucial but often challenging for PS professionals (e.g., speech therapists, vocologists, coaches).

This project examines how oral communication skills training including simulations in virtual reality (VR) supports the acquisition of effective oral PS skills. Using acoustic analyses, outcomes from participants in the intervention group (N = 40) will be compared with those of a wait-list control group (N = 40) to determine whether significant differences emerge in filled pauses, speech rate, and vocal intonation during PS. Changes in PS self-efficacy will also be assessed. Regarding secondary outcomes, the study will evaluate changes in self-reported and physiological PS anxiety, as well as self-reported confidence as a speaker. Finally, self-perceived vocal effort during PS will be examined.